Conversion of quarries into hubs for intermediate storage - Upgrading and treatment of excavated materials - opportunities and challenges

Abstract

The construction industry is a major contributor to greenhouse gas emissions and re source consumption, with a growing demand for sustainable practices in material man agement. This thesis explores the potential of converting rock quarries into multifunc tional hubs for the intermediate storage, upgrading, and treatment of excavated ma terials within the Gothenburg region. Through a qualitative methodology comprising literature review, site visits, and stakeholder interviews, the study identifies technical, legislative, and logistical opportunities and challenges involved in such conversions. Key findings highlight synergies in technical equipment, the potential for reducing trans portation distances and emissions, and the importance of developing viable business models. The thesis also presents three scenario-based analyses that explore different lev els of integration and their respective regulatory, technical, and environmental implica tions. Results suggest that while such transformations offer significant circular economy benefits, they require careful navigation of environmental legislation, stakeholder col laboration, and market demand for recycled materials. The study contributes holistically to the broader objective of sustainable infrastructure by proposing practical strategies for enhancing circular mass management and production through the repurposing of quarries.